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Smeared Dagger Moth

Smeared Dagger Moth

Acronicta oblinita

A species of Dagger moths

Acronicta oblinita, the smeared dagger moth or arioch dagger, is a moth of the family Noctuidae. The species was first described by James Edward Smith in 1797. It is found in eastern North America, from Nova Scotia west across Canada to British Columbia, north to Lake Athabasca and south to Florida and Texas. The wingspan is 36–54 mm. Adults are on wing from May to July in one generation depending on the location. The forewing is brown and the hindwing is off white. Specimens from the southern states are larger and much paler than typical specimens from further north The larvae feed on various forbs, shrubs, and trees. They are considered an occasional pest in the fruit industry due to defoliation of the host plants.

General Info About Smeared Dagger Moth
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Attributes of Smeared Dagger Moth
Habitat
damp area; tall grass; coarse weed; woody vegetation
Adult Food Sources
Flower nectar, honeydew, sap flows, decaying fruit, tree sap
Larva Food Source
Oak leaves, willow leaves, maple leaves, cherry leaves, other deciduous tree leaves
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
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Life Cycle of Smeared Dagger Moth
Egg The eggs of smeared Dagger Moth are usually laid in clusters and have a rounded shape. They are small and exhibit subtle coloring, providing camouflage on the host plant. They serve as protection until the larvae emerge.
Larva As larvae, smeared Dagger Moth display rapid growth through successive molts, with each instar larger and differently patterned. They possess chewing mouthparts for feeding and may exhibit bright warning colors or camouflaged hues.
Pupal In the pupal stage, smeared Dagger Moth undergo transformation within a protective casing. Shape, color, and function are dormant, as the insect reorganizes internally, preparing for adult emergence.
Adult Emerging from the pupa, the adult smeared Dagger Moth's development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
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Predators of Smeared Dagger Moth Larvae
Birds, rodents, other insectivorous mammals, larger insects, spiders, reptiles
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Predators of Adult Smeared Dagger Moth
Bats, birds, spiders, reptiles
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Interesting Facts About Smeared Dagger Moth
The caterpillars of smeared Dagger Moth display mimicry by bearing markings that resemble bird droppings, a clever camouflage against predators.
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Scientific Classification of Smeared Dagger Moth
Tips for Finding Smeared Dagger Moth
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How Can You Attract Smeared Dagger Moth
Sweet substances, like sugar or honey solutions, can be attractive to adult smeared Dagger Moth as they often seek out nectar. For luring caterpillars, suitable host plants are essential.
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Habitat Preferences of Smeared Dagger Moth Through Different Life Stages
To observe the larval stage of smeared Dagger Moth, search on the leaves of host plants, primarily deciduous trees, such as willows, oaks, and maples, in wooded areas or forests. The pupal stage typically resides in a cocoon attached to leaf litter or twigs near the ground. Seeking adult smeared Dagger Moth involves nighttime excursions, often with the aid of light traps, as they are nocturnal and attracted to light sources. Adult smeared Dagger Moth can occasionally be spotted resting on tree trunks or wooden structures during the day.
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When is the Best Time to Observe Smeared Dagger Moth
The appropriate time to find adult smeared Dagger Moth is usually at night since many moths are nocturnal. Caterpillars are more active during the daytime and easier to spot when they are feeding.
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What is the Best Weather to Observe Smeared Dagger Moth
Calm, warm, and humid nights are ideal for encountering adult smeared Dagger Moth, as these conditions are conducive to their flight and feeding behavior. During the day, overcast but dry conditions can increase caterpillar activity.
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How and Where Can You Find Smeared Dagger Moth at Different Life Stages
Egg Smeared Dagger Moth eggs are often laid on the underside of host plant leaves. To find these, carefully inspect susceptible vegetation, especially during the species’ breeding season.
Larva Smeared Dagger Moth caterpillars can be found on or near their food source. Look for chewed leaves and frass (caterpillar droppings) on or beneath host plants to locate them during the day.
Pupal Smeared Dagger Moth pupae are usually hidden in the soil or leaf litter, sometimes within a cocoon. Searching beneath the host plants or gently sifting through the top layer of soil or litter might reveal hidden pupae.
Adult Adult smeared Dagger Moth are nocturnal and attracted to light, so setting up a light trap at night can be an effective method for observation or capture. They are also drawn to fermenting bait or sugary mixtures.
Are Smeared Dagger Moth harmful?
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Harmful Effects of Smeared Dagger Moth
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Hurt Plant

Smeared Dagger Moth inflicts damage primarily through the act of feeding. It chews on the tissues of leaves of various deciduous trees like oaks, maples, and birches. This can lead to defoliation, stressing the host plants and potentially stunting their growth or reducing their overall vigour and reproductive capabilities.

More Effects of Smeared Dagger Moth

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